CN115270213A

CN115270213A - Twin method, subscription method and system for current state of entity

Info

Publication number: CN115270213A
Application number: CN202210760272.6A
Authority: CN
Inventors: 林伟
Original assignee: Beijing Wellintech Co Ltd
Current assignee: Beijing Wellintech Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-01
Anticipated expiration: 2042-06-30
Also published as: CN115270213B

Abstract

The application relates to the technical field of digital twinning, in particular to a twinning method, a subscription method and a system for the current state of an entity, wherein the twinning method comprises the following steps: respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which exists currently and at least one part physical entity which forms the target physical entity, wherein the target entity model and the part entity model both comprise time attributes; setting time attribute values in the target entity model and the at least one part entity model as current time; and establishing an incidence relation between the target entity model and at least one part entity model. The method solves the technical problems that the existing digital twinning method is complex and is not suitable for industrial application.

Description

Twin method, subscription method and system for current state of entity

Technical Field

The application relates to the technical field of digital twinning, in particular to a twinning method, a subscription method and a system for the current state of an entity.

Background

The digital twin is an beyond-reality concept as an important way to realize industrial digital transformation and promote intelligent upgrading. At present, the digital twinning is driven by a multi-dimensional virtual model and fusion data in a double mode, actual function services and application requirements such as monitoring, simulation, prediction and optimization are achieved through virtual-real closed loop interaction, and the establishment of the digital twinning model is the actual basis for achieving the data twinning.

The existing method for constructing the digital twin model can be generally transferred to a full three-dimensional geometric model of product definition through parameters of a simulation analysis model, then transferred to a digital production line to be processed into a real physical product, reflected to the product definition model through an online digital detection/measurement system, and further fed back to the simulation analysis model. All data models can be communicated in two directions by means of digital twins, so that states and parameters of real physical products are fed back to the digital models, the digital models of all links of a life cycle are kept consistent, and current and future functions and performances of the system can be dynamically and real-timely evaluated. The construction of the digital twin model requires the generation or extraction of models in each scene, then the construction of an action library, and the construction of the digital twin scene with each scene, the corresponding models and the corresponding actions.

In the process of implementing the present application, the inventors found that at least the following problems exist in the prior art: in actual production or application, a multi-model and multi-scene combined digital twin method needs to occupy a large amount of system resources, increases the operation load of a system, further increases the production cost, and is not beneficial to industrial application.

Disclosure of Invention

Therefore, the embodiment of the application provides a twin method, a subscription method and a system for the current state of an entity, which can solve the technical problems that the existing digital twin method is complex and is not suitable for industrial application, and the specific technical scheme content is as follows:

in a first aspect, embodiments of the present application provide a method for twinning a current state of a physical object, the method including:

respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which currently exists and at least one part physical entity which forms the target physical entity, wherein the target entity model and the part entity model both comprise time attributes;

setting time attribute values in the target entity model and the at least one part entity model as current time;

and establishing an incidence relation between the target entity model and at least one part entity model.

Furthermore, the incidence relation is a parent-child relation, the target entity model with the parent-child relation is a parent model, and the part entity model is a child model.

Further, the target entity model in the parent-child relationship is the only parent model of the part entity model.

Further, the target entity model and the part entity model both include a spatial attribute, and the spatial attribute describes a spatial size of the target entity model or the part entity model.

Further, the spatial attributes are described by a spatial range, and the spatial range describes a geometric range formed by coordinate values of the target solid model or the part solid model in a coordinate system;

the spatial range of the part entity model of the part physical entity with parent-child relationship is less than or equal to the spatial range of the target entity model of the target physical entity.

Further, the target solid model and the part solid model further include unique identifiers, and the unique identifiers are used for uniquely mapping the corresponding target solid model or the part solid model.

Further, the method further comprises:

establishing a first coordinate system in a target physical model of the target physical entity, wherein the origin of the first coordinate system is kept fixed relative to the spatial position of the target physical model, and the spatial attribute values of the part physical model of the part physical entity adopt the first coordinate system as a reference coordinate system, wherein,

when the target entity model moves, the part entity model which has a parent-child relationship with the target entity model moves along with the target entity model.

Further, the method further comprises:

establishing a first coordinate system in a target physical model of the target physical entity, wherein the origin of the first coordinate system is fixed relative to the spatial position of the target physical model, establishing a second coordinate system corresponding to the physical model of the part according to the first coordinate system, and the first coordinate system and the second coordinate system have a relative position relationship,

according to the space range of the part solid model and the second coordinate system with the relative position relation, when the target solid model moves, the part solid model with the parent-child relation with the target solid model moves along with the target solid model.

Further, the part solid model further includes a position attribute, where the position attribute describes a spatial range of the part solid model excluding a spatial range of the part solid model within a spatial range of a target solid model having a parent-child relationship.

Further, when the part solid model is moved, the position attribute value of the part solid model is modified to be the unique identifier of other part solid models corresponding to the space range to which the part solid model needs to be moved.

Further, the method further comprises:

the target solid model and the part solid model both comprise shape information and posture information, and the shape information is coordinate data of the target solid model in a first coordinate system or the part solid model in a second coordinate system, wherein the coordinate data are used for describing the shape; the pose information describes data of a target solid model in a first coordinate system or a part solid model in a second coordinate system describing rotation of the target solid model or the part solid model.

Further, the method further comprises:

after the target entity model is deleted, the part entity model with parent-child relationship with the target entity model is disassociated from the target entity model; or the like, or a combination thereof,

and when the part solid model moves out of the space range of the target solid model, removing the association relation with the target solid model.

Further, both the target entity model and the part entity model further include member information, and the member information describes difference information of the target entity model or the part entity model.

In a second aspect, the present application discloses a method for subscribing to a current state of an entity, including:

respectively establishing a target entity model and at least one part entity model aiming at a target physical entity and at least one part physical entity forming the target physical entity, wherein the target entity model and the part entity model both comprise time attributes;

establishing an incidence relation between a target entity model and at least one part entity model;

when the state of the part mockup changes, the subscriber receives change information of the part mockup associated with the target mockup.

Further, the method also comprises the following steps:

and after the creation of at least one part entity model related to the target entity model is completed, the subscriber receives the creation information of the part entity model related to the target entity model.

Further, the receiving, by the subscriber, change information of the part solid model associated with the target solid model when the state of the part solid model changes includes:

when the state of the part entity model changes, inquiring whether a subscription item of a target entity model having an incidence relation with the part entity model exists;

and if so, releasing the change information of the part entity model.

Further, the state change of the solid model of the part includes any one of the following situations: and modifying the attribute of the part solid model, and deleting the part solid model from the associated target solid model.

Further, the method further comprises:

aiming at a target entity model, acquiring all incidence relations existing in the target entity model, and inquiring all part entity models associated with the target entity model by using all incidence relations;

and aiming at a part entity model, acquiring all incidence relations existing in the part entity model, and inquiring a target entity model associated with the part entity model and other part entity models associated with the target entity model by using all incidence relations.

In a third aspect, the present application discloses a method for subscribing to a current state of an entity, including:

respectively establishing a target entity model and at least one part entity model aiming at a target physical entity and at least one part physical entity forming the target physical entity, wherein the target entity model and the part entity model at least comprise a space range, and the space range is used for describing a range formed by coordinate values of the target entity model or the part entity model in a coordinate system;

and when the spatial range of the part solid model and the spatial range of the target solid model are overlapped, the subscriber receives the change information of the part solid model.

Further, the method further comprises:

when the space range of the part solid model and the space range of the target solid model are overlapped for the first time, the subscriber receives the moving-in information of the part solid model in the target solid model.

Further, when the spatial range of the part solid model and the spatial range of the target solid model overlap, the receiving, by the subscriber, the change information of the part solid model in the target solid model includes:

when the part entity model changes, inquiring the space ranges of the target entity models corresponding to all the space range subscription items, and judging whether the space ranges of the part entity models are overlapped with the space ranges of the target entity models corresponding to the space range subscription items;

and if the part entity models are overlapped, releasing the change information of the part entity models.

Further, the change includes any one of the following situations: and modifying the attribute of the part solid model in the space range of the target solid model, and moving the part solid model out of the space range of the target solid model.

Further, the method further comprises:

aiming at a target entity model, inquiring all part entity models in the space range of the target entity model according to the space range of the target entity model;

and aiming at a part solid model, inquiring a target solid model of which the spatial range comprises the spatial range of the part solid model and/or other part solid models contained in the spatial range of the target solid model according to the spatial range of the part solid model.

In a fourth aspect, the present application discloses a twin system of a current state of a physical object, the system comprising:

the model establishing module is used for respectively establishing a target entity model and at least one part entity model aiming at a target physical entity and at least one part physical entity forming the target physical entity, wherein the target entity model and the part entity model both comprise time attributes;

the attribute setting module is used for setting time attribute values in the target entity model and the at least one part entity model as the current moment;

and the incidence relation establishing model is used for establishing the incidence relation between the target entity model and at least one part entity model.

In a fifth aspect, the present application discloses a system for subscribing to a current status of an entity, the system comprising:

the model establishing module is used for respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which currently exists and at least one part physical entity which is associated with the target physical entity;

the incidence relation establishing model is used for establishing the incidence relation between the target entity model and at least one part entity model;

the first distribution module is used for receiving the change information of the part entity model related to the target entity model by the subscriber when the state of the part entity model changes.

In a sixth aspect, the present application discloses a system for subscribing to a current status of an entity, the system including:

the third query module is used for respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which currently exists and at least one part physical entity which forms the target physical entity, wherein the target entity model and the part entity model at least comprise a spatial range, and the spatial range is used for describing a range formed by coordinate values of the target entity model or the part entity model in a coordinate system;

and the second publishing module is used for receiving the change information of the part entity model by the subscriber when the space range of the part entity model is overlapped with the space range of the target entity model.

In a seventh aspect, the present application discloses a computer readable storage medium storing a computer program, which when executed by a processor, implements the steps of the twinning method for the current state of a physical object as described in any one of the preceding items.

In an eighth aspect, the present application discloses a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the method for subscribing to the current state of an entity in any one of the preceding items.

In summary, compared with the prior art, the beneficial effects brought by the technical scheme provided by the embodiment of the present application at least include:

1. the entity model is described through attributes in an entity model data structure, the current time for checking the entity model is described and called by a time attribute value, the correlation between a target entity model and a part entity model is used for describing the correlation between physical entities in industrial production, the coupling between the physical entities is realized, the digital twin of the entity object is realized without establishing multiple models and multiple scenes, the requirement of the industrial production can be met, the system resources required to be occupied are reduced, the running load of the system is reduced, the production cost is further reduced, the method is suitable for the digital twin under the configuration of multiple devices, the twin process is simplified, and the complexity of the digital twin is reduced;

2. the association relation is used for subscribing the model associated with the part entity model or the target entity model, and when a certain subscribed physical entity changes, the influence of the change of the physical entity on other associated physical entities can be obtained through the association relation, so that the industrialized production requirement is met;

3. the model related to the part entity model or the target entity model is inquired through the association relation, so that the quick inquiry of a certain model and other models related to the model is realized, the influence of the change of a certain physical entity on other production elements can be timely known in industrial application, and the requirement of industrial production application is met.

Drawings

Fig. 1 is a schematic flow chart of a twinning method for a current state of an entity according to an embodiment of the present disclosure.

Fig. 2 is a schematic flow chart of a twinning method for a current state of an entity according to another embodiment of the present application.

Fig. 3 is a second flowchart illustrating a twinning method for a current state of a physical object according to another embodiment of the present application.

Fig. 4 is a flowchart illustrating a method for subscribing to a current status of an entity according to an embodiment of the present application.

Fig. 5 is a flowchart illustrating a method for subscribing to a current status of an entity according to another embodiment of the present application.

Fig. 6 is a second flowchart illustrating a method for subscribing to a current status of an entity according to another embodiment of the present application.

Fig. 7 is a third flowchart illustrating a method for subscribing to a current status of an entity according to another embodiment of the present application.

Fig. 8 is a fourth flowchart illustrating a method for subscribing to a current status of an entity according to another embodiment of the present application.

Fig. 9 is a fifth flowchart illustrating a method for subscribing to a current status of an entity according to another embodiment of the present application.

Detailed Description

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In addition, the term "and/or" in the present application is only one kind of association relationship describing the associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the present application, the character "/" indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

The embodiments of the present application will be described in further detail with reference to the drawings attached hereto.

Referring to fig. 1, in one embodiment of the present application, a twinning method of a current state of a physical object is provided, the main steps of which are described as follows:

s1: respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which currently exists and at least one part physical entity which forms the target physical entity, wherein the target entity model and the part entity model both comprise time attributes;

s2: setting time attribute values in the target entity model and the at least one part entity model as the current time;

s3: and establishing an incidence relation between the target entity model and at least one part entity model.

The application of the digital twin in industrialization is various, such as production process simulation, digital production line, key index monitoring and process capability assessment, and the physical entity is described by adopting a virtual number. In this embodiment, the extract is a concept of space, the physical entity is abstracted to be described by space, entity models corresponding to the physical entity are established (both refer to a target entity model and a part entity model in the current and the following description), and a spatial position relationship between the physical entities is described through an association relationship between the entity models, so that the description of association between different physical entities in actual industrial application is realized, and the construction requirement of a large-scale industrial line is met.

A physical object, i.e. a physical entity existing in reality, such as a generating device, a factory building, a product, etc. In the embodiment, the extract is a concept of space, that is, during modeling, the physical entity is expressed in space without paying attention to appearance, geometric texture and the like of the physical entity, and the relationship between objects is simplified into the relationship between space and space; by way of example of one specific implementation manner, when a physical entity is modeled, the physical entity is modeled by mapping the physical entity according to an actual space range of the physical entity, the physical entity is described in a space, the shape of the space can be any shape, the physical entity is not concerned with the appearance of the space when the physical entity is modeled, but the physical entity is described by adopting a simple structure, and a simple method suitable for industrial production for realizing the digital twin of the physical entity is provided, so that the twin of different physical entities in the industrial production is suitable.

When the digital twinning is carried out, the physical entity can be twinned according to the physical entity which is the physical space, and the physical entity is directly modeled by the concept of physical space without constructing an intermediate model of the physical entity. For example, in factory application, a factory-workshop-production line-equipment and the like construct an entity model from physical entities in any scene such as a part assembly whole, construct a target entity model corresponding to a factory according to the relationship between the physical entities and part physical entities attached to the physical entities, then establish a target entity model corresponding to a workshop, and describe the relationship between the physical entities in the factory by establishing the association relationship between the target entity model corresponding to the factory and the target entity model corresponding to the workshop. In the incidence relation between the target entity model corresponding to the factory and the target entity model corresponding to the workshop, the target entity model corresponding to the workshop is a part entity model of the target entity model corresponding to the factory. In the relation between the workshop and the production line, the production line is a part of the auxiliary workshop, namely, the target entity model corresponding to the production line is a part entity model associated with the target entity model corresponding to the workshop.

In this embodiment, the association relationship between the physical entity and the part physical entity may be any one or two or more of an association relationship that can be established between the physical entities, such as a management relationship, a space inclusion relationship, and the like, besides an affiliation relationship, which is not described herein again; in this embodiment, the method for establishing the association relationship is to set a tag association between the target entity model and the part entity model, and in other embodiments of the present application, there may be other implementation manners, for example, a coordinate system is constructed, and a space of the parent model in the coordinate system includes a space of the child model, which are not described herein again.

The target entity model and at least one part entity model are associated, for example, more than two workshops are arranged under a factory, the workshops are all subjected to digital twin, and the part entity models of the workshops which are associated with the factory are all associated with the target entity model corresponding to the factory.

For the directly constructed entity model, in this embodiment, the entity model is a computer data structure for mapping data in the reality of a physical entity, and different data elements (such as attributes) in the data structure are used to describe the physical entity; the data in the physical entity may be acquired by a sensor or maintained by a technician, etc., and will not be described herein.

The data elements of the entity model contain time attributes, which describe the current time of the entity model, i.e. the time attribute value is the current time. In the embodiment, the physical entity is described by the time attribute, and in the industrial application, for the physical entity in the industrial application, when monitoring and other applications are performed, various states of the physical entity at the current time can be known.

Specifically, in this embodiment, when the user invokes the entity model, the entity model obtains the current time of the computer as the time attribute value, and in other embodiments of the present application, the current time of the entity model may also be obtained in other manners, for example, by maintenance of a background technician, which are not described herein again.

In this embodiment, the data elements of the entity model may be increased according to the application industry requirements, for example, the spatial attribute, the position attribute, the coordinate information, the posture information, the unique identifier, and the like, which are not described herein again.

In this embodiment, the method for constructing the association relationship between the target solid model and the part solid model at least includes:

1. adding data elements describing the part entity model with the incidence relation in a computer data structure of the target entity model and/or adding data elements describing the target entity model with the incidence relation in a computer data structure of the part entity model;

2. and establishing a coordinate system, wherein the space range formed by the coordinate values of the target physical model in the coordinate system comprises the space range formed by the coordinate values of the part physical model in the same coordinate system.

According to the method, the target entity model is abstracted into the space to establish the computer data structure, when the data twin is established, information such as the shape and texture of a physical entity does not need to be concerned, the logic of the physical entity twin is simplified, and the method is suitable for all-creature twin; the association relationship between the target entity model and the part entity model is established, and the relationship between the physical entities is described by the association relationship, so that the linkage and the coupling between the physical entities are realized, and the method is suitable for industrial production; by setting the time attribute, the purposes of monitoring the physical entity and acquiring the real-time state of the entity object in industrial production are met.

According to the method and the device, the digital twinning of the entity object is realized without establishing multiple models and multiple scenes, the entity model is described through the data elements of the entity model, the requirement of industrial production is met, the system resources occupied by the models are reduced, the running load of the system is reduced, the production cost is further reduced, the method and the device are suitable for the digital twinning under multiple conditions, and the process of the digital twinning is simplified. The twinning method is visual, and a user can directly twins the relation between the target entity models in reality according to the spatial actual relation of the corresponding physical entities.

Optionally, in another embodiment, the association relationship is a parent-child relationship, the target entity model having the parent-child relationship is a parent model, and the part entity model is a child model.

Specifically, in the parent-child relationship, the son may inherit some characteristics of the parent, that is, the son may inherit some attributes and methods of the parent. The method is embodied on the level of a software program, and the code amount can be greatly reduced by adopting a parent-child relationship; and the parent-child relationship is a bidirectional one-to-many relationship, which is suitable for the situation that the relationship between the physical entity and at least one associated part physical entity needs to be embodied in production application.

As in the present embodiment, assuming that the relationship between the physical entity and the part physical entity is a spatial inclusion relationship, the part entity model having a parent-child relationship inherits the spatial position of the parent model, and the child model is within the spatial range of the parent model; in another embodiment, if a part mockup a is managed by another part mockup B, sub-models that have a parent-child relationship with a are managed by a, and inherit the attributes managed by B; in other embodiments, there are other parent-child relationship embodiments, which are not described herein.

Optionally, in another embodiment, the target entity model in the parent-child relationship is the only parent model of the part entity model.

Optionally, in another embodiment, both the target solid model and the part solid model are provided with a spatial attribute, the spatial attribute describes a spatial range of the target solid model or the part solid model, and the spatial range describes a range formed by coordinate values of the target solid model or the part solid model in a coordinate system;

the spatial extent of the part entity model of the part physical entity having a parent-child relationship is less than or equal to the spatial extent of the target entity model of the target physical entity.

Specifically, in the present embodiment, for industrial applications, the target physical model is simplified according to "object is space" so as to occupy a space description in the established coordinate system, a space range is set for both the target physical model and the part physical model, the space range is used to describe a space range occupied by the corresponding target physical model or part physical model in the coordinate system, and the space range value is a coordinate value of the target physical model or part physical model in the coordinate system.

The spatial attributes are used for describing that the spatial range of the target entity model which is located in the same coordinate system and has the parent-child relationship comprises the spatial range of the part entity model, based on the concept of the object, namely the space, provided by the application, the association relationship between the parent model and the child model can be visually embodied, and the child model is located in the spatial range of the parent model by utilizing the inheritance of the parent-child relationship.

Further, in another embodiment, the target entity model and the part entity model further include unique identifiers, and the unique identifiers are used for uniquely mapping the corresponding target entity model or the part entity model, and optionally, when an association relationship is established between the target entity model and the part entity model, parent-child association may be implemented by setting a spatial attribute value of the part entity model to be the unique identifier of the target entity model having parent-child relationship. In this embodiment, different physical entities are distinguished by setting a unique identifier. Whether the target solid model or the part solid model is provided with a unique identifier.

Specifically, when an association relationship is established between a target entity model and a part entity model, a spatial attribute value of the entity model may be set as a unique identifier of a parent model or a coordinate value range or a unique identifier of a sub model, and in this embodiment, a spatial attribute value of the parent model is set as a unique identifier of the sub model: the spatial attribute value contains the unique identification of all sub-models related to the parent model, and the spatial range of the sub-models is in the spatial range of the parent model under the same coordinate system. When a user calls the target entity model to check the related information of the target entity, the spatial inclusion relationship between the parent model and the child model can be visually known according to the spatial attribute values, the current state of a physical entity can be described by matching the spatial attribute with the time attribute, a factory model is constructed, and the requirement of industrial production is met.

In the embodiment, the spatial attribute value of the sub-model with the parent-child relationship is set as the unique identifier of the parent model, when a certain part entity model is called to be checked, the parent model can be directly found out through the spatial attribute value, the finding is convenient, and the spatial attribute value is used as the unique identifier, so that the spatial inclusion relationship between the parent model and the sub-model is established, the expression form of the inclusion relationship between the parent model and the sub-model is simplified, in the process of establishing the digital model of the industrial production line, the actual relative position of the parent model and the sub-model does not need to be concerned, the modeling process is simplified, and the method is suitable for more digital twin scenes.

Optionally, in another embodiment, the part solid model further includes a position attribute, where the position attribute describes a spatial range of the part solid model excluding a spatial range of the part solid model within a spatial range of a target solid model having a parent-child relationship.

Specifically, in this embodiment, a coordinate system is established, the target physical model and the part physical model having a parent-child relationship with the target physical model are both in the same coordinate system, the target physical model is a space formed by coordinates in the coordinate system, the part physical model is also a space formed by corresponding coordinates in the coordinate system, and the spatial range of the target physical model includes the spatial range of the part physical model.

The method for realizing the movement of the part solid model in the space range of the parent model comprises the following steps: and modifying the position attribute value of the part solid model into the unique identification of any other part solid model in the space range of the parent model. In the industrial production, the logic of the movement of the solid model is simplified, the movement of the part solid model in the parent model can be described without calculating the difference value of the coordinates of the solid model needing to be moved and the coordinates of the moved position, and the movement logic of the solid model is simplified.

For example, in a production of a certain product in a factory, processing needs to be performed by different production lines in the same workshop, in the digital model of the factory, the movement of the part mockup corresponding to the product in the spatial range of the parent model of the part mockup can be realized by modifying the position attribute of the part mockup into the unique identifier of the part mockup corresponding to the production line, and the relation between the product and the processing equipment in the processing can be expressed through a simple position attribute value. In addition, the method can also be applied to other scenarios, which are not described herein.

In another implementation, in a preset modeling space, all movable positions in the modeling space can be represented by all unique identifiers, other spaces except the movable positions represented by the unique identifiers are omitted, and the position attribute values are modified to be the unique identifiers of other part solid models except the part solid models in the parent model space range, so that the movement of the positions is realized, and the movement logic of the solid models is simplified. In other embodiments, other implementation manners may also exist, which are not described herein.

Referring to fig. 2, optionally, in another embodiment, the method further includes:

s4: establishing a first coordinate system in a target physical model of the target physical entity, wherein the origin of the first coordinate system is kept fixed relative to the spatial position of the target physical model, and the spatial attribute values of the part physical model of the part physical entity adopt the first coordinate system as a reference coordinate system, wherein,

when the target entity model moves, the part entity model which has a parent-child relationship with the target entity model moves along with the target entity model, and the relative position relationship between the part entity model and the target entity model is unchanged.

Specifically, a first coordinate system of the target solid model is established, and the target solid model is positioned in the first coordinate system; the physical model of the part is located within the first coordinate system of its parent model.

When moving the target solid model within the first coordinate system, the sub-models of the target solid model also use the reference coordinate system whose first coordinate system of the parent model is a spatial range value, i.e., the spatial range value of the part solid model is a coordinate value within the first coordinate system of the parent model of the part solid model. Through the setting of the embodiment, the relative spatial position incidence relation between the target entity model and the part entity model can be quickly established. When a parent model with a parent-child relationship moves, a child model moves along with the parent model, and coordinate values of the target entity model and the child model in the first coordinate system are unchanged; when the sub-model of the target entity model moves, the grandchild model of the sub-model moves along with the sub-model, and coordinate values of the sub-model and the grandchild model in the first coordinate system change accordingly.

It should be noted that, as can be seen from the foregoing, the part solid model may be a parent model of other part solid models, that is, the part solid model B that is a child model of the target solid model a, or may be a parent model of the part solid model C, and in view of the parent-child relationship of the part solid model C, B is the target solid model. In the application of the present embodiment, in a set of parent-child relationships, only the coordinate system of the parent model is focused on, the coordinate system of the child model is ignored, and the spatial position of the associated child model is quickly moved by moving the spatial position of the target entity model according to the constraint relationship between the parent model and the child model.

Referring to fig. 3, optionally, in another embodiment, the method further includes:

s5: establishing a first coordinate system in a target physical model of the target physical entity, wherein the origin of the first coordinate system is kept fixed relative to the spatial position of the target physical model, establishing a second coordinate system corresponding to the physical model of the part according to the first coordinate system, and the first coordinate system and the second coordinate system have a relative position relationship, wherein,

according to the space range of the part solid model and the second coordinate system with the relative position relationship, when the target solid model moves, the part solid model with the parent-child relationship with the target solid model moves along with the target solid model, and the relative position relationship between the part solid model and the target solid model is unchanged.

Establishing a first coordinate system of a target entity model, establishing a second coordinate system of a part entity model, and setting a relative position relation between the first coordinate system of the target entity model with a parent-child relation and the second coordinate system of the part entity model; when a father model with a father-son relationship moves, a child model moves along with the father model, at the moment, the coordinate value of the father model relative to a first coordinate system is unchanged, the coordinate value of the child model relative to a second coordinate system is also unchanged, and the relative position of the first coordinate system and the second coordinate system is unchanged; when the parent model with the parent-child relationship is not moved and the child model moves, the coordinate value of the child model relative to the second coordinate system is not changed, and the relative position relationship between the first coordinate system and the second coordinate system changes along with the movement of the child model. Through the arrangement of the embodiment, the sub-model can be moved along with the coordinate system according to the relative relationship between the coordinate systems, in practical application, taking factory modeling as an example, a certain workshop is moved, a production line in the workshop is moved along with the movement, and the effect of moving and deleting the model can be quickly realized.

Further, a first coordinate system of the target solid model is established, a second coordinate system of the part solid model is established, the target solid model and the part solid model both further comprise shape information, the shape information is coordinate data of the target solid model describing the shape in the corresponding first coordinate system or the part solid model in the corresponding second coordinate system, and the shape information of the solid model is described by the coordinate information in the established coordinate system; if only envelope information is of interest, then envelope information may be set, and if specific shape information is of interest, then the exact shape data within the coordinate system of the solid model may be set.

Further, establishing a first coordinate system of the target solid model and establishing a second coordinate system of the part solid model; the target solid model and the part solid model both further comprise attitude information, and the attitude information describes the rotating attitude of the solid model in a coordinate system of the solid model and can be specifically represented by a coordinate difference value; in other embodiments, the solid model may also be provided with a rotation axis, and the rotation direction and the rotation angle of the rotation axis may be used for representation, which is not described herein again.

Optionally, in another embodiment, the entity model adopts a unified data structure, that is, the target entity model and the part entity model both adopt a unified data structure.

The data structure of the unified entity model is set in the embodiment, so that the method is suitable for the digital twin of physical entities in most industries at present. In the production application, the unified and rapid entity object digital twinning is realized, and the method is suitable for all-object twinning.

Further, the data elements in the data structure unified by the entity model at least comprise member information.

The member information is used for describing difference information of different entity models, the entity models comprise zero or at least one member information, and a data structure of the member information sets one data element or two data elements or a plurality of data elements according to the requirements of the entity models.

For example, in one example of the present embodiment, the data structure of the member information is set to include a member ID, a member name, a member data type, and a member value. Taking an automobile as an example, the color, material, weight and the like of the automobile can be represented by member information, in the member information 1, the member ID is 1, the member name is color, and the member data type is enumeration; in the member information 2, the member ID is 2, the member name is material, and the member data type is enumeration; in the member information 3, the member ID is 3, the member name is weight, and the member data type is floating point type.

The member information is used for describing the difference of different entity models so as to meet the requirements of different application scenes, so that the data structure of the unified entity model meets the digital twin requirements of the physical entity with the difference information, the application range of the entity model with the unified data structure is enlarged, and the method is further suitable for all-twin.

Optionally, in another embodiment, after the target entity model is deleted, the part entity model having a parent-child relationship with the target entity model is disassociated from the target entity model, and an association relationship is established with an entity model of another physical entity; or when the part solid model moves out of the space range of the target solid model, removing the association relation with the target solid model.

In this embodiment, the way of establishing the parent-child relationship between the part entity model whose parent-child relationship is released and the target entity model whose spatial range includes the part entity model may be: when the target entity model for releasing the parent-child relationship is not deleted, inheriting the spatial attribute value of the parent model of the part entity model before releasing the parent-child relationship, wherein the spatial attribute value of the parent model is the unique identifier of the target entity model containing the parent model, and the spatial range of the target entity model necessarily contains the spatial range of the part entity model. When the target entity model with the removed parent-child relationship is deleted, all entity models of which the spatial range contains the target entity model are searched and identified, a tree diagram is established according to the parent-child relationship among the entity models, the parent model of the target entity model with the removed parent-child relationship is found out from the tree diagram, and the parent-child relationship among the parent model and the part entity model with the removed parent-child relationship is established. In other embodiments, other methods may be used, and are not described herein.

Optionally, in another embodiment, the target solid model and the part solid model further include types, the types are used to describe the types of the solid models, for example, the part solid model a is a vehicle door, the part solid model B is a vehicle hood, and the like, and the types are set so that a user can know the types of the solid models in reality according to the types of the solid models.

Optionally, in another embodiment, the data structures of the target solid model and the part solid model at least include unique identifiers, types, time attributes, spatial attributes, position attributes, coordinate information, shape information, posture information, and a plurality of member information, and by setting the data structures in this embodiment, the solid model is suitable for twin of solid objects in most scenes.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Referring to fig. 4, in an embodiment of the present application, a method for subscribing to a current state of an entity is provided, which includes the following steps:

s10: respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which currently exists and at least one part physical entity which constitutes the target physical entity and is associated with the target physical entity, wherein the target entity model and the part entity model both comprise time attributes;

s11: setting time attribute values in the target entity model and the at least one part entity model as current time;

s12: establishing an incidence relation between a target entity model and at least one part entity model;

s13: when the state of the part solid model changes, the subscriber receives the change information of the part solid model related to the target solid model.

Specifically, in this embodiment, the association relationship between the target entity model and the part entity model is established, and the association relationship subscribes to the entity model, so that an effect of accurately subscribing to the entity model having the association can be achieved. In the industrial production, an attaching and cooperating relationship exists between physical entities, the corresponding entity model is subscribed by the association relationship, and when the entity model with the association changes, the change of other entity models related to the entity model with the change can be known at the first time.

In this embodiment, the change of the state of the physical model of the part includes any one of the following situations: modifying the attribute of the part solid model, and deleting the part solid model from the associated target solid model; in other embodiments of the present application, the method may further include creating a part entity model, and the like, which is not described herein again; when the state of the part entity model changes, based on the incidence relation, the subscriber can receive the change information of the sub-model in the target entity model.

Further, the association relationship is data of the relationship between the physical models, and the specific implementation may be unique identification, spatial attribute, position attribute, and the like in the attributes of the physical models.

Referring to fig. 5, optionally, in another embodiment, the method further includes:

s14: and after the creation of at least one part entity model related to the target entity model is completed, the subscriber receives the creation information of the part entity model related to the target entity model.

Through the setting of the embodiment, newly-built information of the part entity model can be received, the life cycle of a target entity or the part entity can be monitored, for example, taking factory production as an example, a product processed in a certain workshop is a part entity model with a parent-child relationship of the target entity model of the workshop, and when the product is conveyed to the workshop for processing, a subscriber receives the information of the newly-built product in the workshop, so that the information of the production rate, the yield, the processing state and the like of the product can be monitored in real time, and the industrialization requirement can be met.

Referring to fig. 6, optionally, in another embodiment, S13 includes:

s131: when the state of the part entity model changes, inquiring whether a subscription item of a target entity model having an incidence relation with the part entity model exists;

s132: and if so, releasing the change information of the part entity model.

When subscribing, according to different subscription information, a plurality of subscription items are included in the subscription information, and a certain subscription information subscribes the change information of the associated part entity model of the target entity model which accords with the subscription item.

Specifically, in this embodiment, the association relationship subscribes to the entity model, so that an effect of accurately subscribing to the entity model with the association can be achieved. In the industrial production, an attaching and cooperating relationship exists between physical entities, the corresponding entity model is subscribed by the association relationship, and when the entity model with the association changes, the change of other entity models related to the changed entity model can be known at the first time.

Optionally, in another embodiment, the method further includes S22: and generating subscription information from the incidence relation or incidence relation of the target entity model and/or the part entity model and at least one attribute value, and subscribing the target entity model and/or the part entity model corresponding to the attribute value.

Specifically, in this embodiment, the other attributes refer to other data elements in the data structure of the entity model except for the association relationship, such as time attributes, shape information, and the like.

When the subscription information is constructed, receiving subscription content set by a subscriber and storing the subscription content as a subscription item, such as a unique identifier; subscription information can also be generated from attributes from the perspective of the part entity model, for example, spatial attributes; subscription information, such as unique identifier + location attribute, may also be formed from attributes of the target mockup and the part mockup, respectively.

Further, setting a filtering condition, and filtering the subscription content according to the filtering condition after the subscription content is obtained.

Furthermore, the subscription item of the subscription information at least comprises a unique identifier, when the spatial attribute value of a certain part entity model is modified, the subscription item with the same value as the modified spatial attribute value is inquired, and a part entity model change event is issued;

and inquiring the subscription item with the same value as the value before the modification of the spatial attribute, and releasing the disassociation event of the part entity model.

An example of this embodiment is: the part solid model 1 is moved into the target solid model 3 from the target solid model 2, the query attribute value is a subscription item of the target solid model 3, and if the query attribute value is present, the information that the part solid model 1 is moved into the target solid model 3 is published; and querying a subscription item with the unique identifier of the target entity model 2, and if the subscription item is queried, publishing the information that the part entity model 1 is moved out of the target entity model 2.

Optionally, in another embodiment, the subscription information adopts a uniform data structure, and the content of the subscription item in the subscription information is set according to an actual production situation.

Furthermore, the subscription information comprises unique identification, space attribute, position attribute, type and filtering condition, and the method is suitable for most industrial applications and meets the subscription requirement.

Further, in one example, when the subscription items in the subscription information include the unique identifier, when the attribute of the entity model is modified, all the subscription items which are uniquely identified as the unique identifier of the entity model are queried. And if the subscription item is inquired, publishing the change information of the entity model. If the mockup is deleted, the process of publishing is the same as modifying, and the mockup deletion event is published.

Further, in one example, when the subscription item of the subscription information includes the spatial attribute and the filter condition. When the part entity model is added to the target entity model, the part entity model needs to be bound to the target entity model, namely, the space attribute value of the part entity model is set as the unique identifier of the target entity model, and all subscription items of the space attribute value of the part entity model are inquired. If a subscription item is inquired, the entity model corresponding to the subscription item can sense that the entity model with the part is added; if the fact that the subscription information corresponding to the subscription item has the filtering condition and the field is not empty is inquired, whether the added part entity model meets the filtering condition or not is judged, if yes, the unique identification and the name information of the added part entity model are published, and if not, the unique identification and the name information of the added part entity model are not published; and if no filter condition exists in the subscription information corresponding to the subscription item, directly publishing the unique identification and the name information of the added part entity model. When the part entity model is deleted and the attribute of the part entity model is modified, for example, the content of the member information is modified, and the process of publishing the change information of the part entity model is the same as the publishing process when the part entity model is added.

Further, in an example, the subscription items of the subscription information at least further include a position attribute, when the position attribute value of a certain part solid model is modified, all the subscription items with the same position attribute value as the modified position attribute value are inquired, and a component solid model event to be moved in is issued; and inquiring all subscription items with the same position attribute value before modification, and issuing a move-out part solid model event.

When the subscription item information includes a location attribute and a filter condition. And after the position attribute value of the part entity model is modified, all the position attributes are inquired as all subscription items of the current position attribute value of the entity model. If the inquired subscription information of the subscription item has a filtering condition, judging whether the object meets the filtering condition, if so, issuing the unique identifier and name information of the part entity model moved into the new position and the moved part entity model, and if not, not issuing the unique identifier and name information; and if the filter condition of the subscription information in the subscription item is null, directly publishing the subscription information. Inquiring all subscription items of which all position attribute values are the old position attribute values of the part entity model; if the subscription information corresponding to the subscription item is inquired to have a filtering condition, judging whether the part solid model meets the filtering condition, if so, issuing the information of the part solid model moved out from the old position, and if not, not issuing the information of the unique identifier and the name of the moved part solid model; and if the filtering condition is empty, directly issuing.

Further, in one example, the subscription items of the subscription information include at least spatial attributes, types, and filter conditions. When the part entity model is added to the target entity model, the part entity model needs to be bound to the target entity model, namely, the spatial attribute value of the part entity model is set as the unique identifier of the target entity model. And querying all subscription items of which the spatial attributes are the spatial attribute values of the added part entity model. If the subscription item is inquired and the type of the newly added part entity model is different from the type in the subscription information corresponding to the subscription item, the part entity model is not released; if the types of the parts are the same, judging whether the part entity model meets the filter conditions in the inquired subscription information, if so, issuing the unique identification and name information for creating the part entity model, and if not, not issuing. When the part entity model is deleted and the attribute of the part entity model is modified, such as member information modification, the process of publishing the change information of the part entity model is the publishing process when the change information is added.

Further, in one example, the subscription items of the subscription information include at least a location attribute, a type, and a filter condition. And after the position attribute of the part solid model is modified, inquiring all the position attributes as all subscription items of the current position attribute value of the part solid model. If the subscription item is inquired, and the type of the part entity model with the modified position attribute is different from the type in the subscription information corresponding to the inquired subscription item, the part entity model is not published; if the types are the same and the subscription item of the subscription information has a filtering condition, judging whether the part entity model modified by the position attribute meets the filtering condition, if so, issuing the unique identification and name information of the part entity model moved into the new position and the moved part entity model, and if not, not issuing. Inquiring all subscription items of the old position attribute values of the part entity models with all the position attributes modified by the position attributes; if the subscription item is inquired and the subscription information corresponding to the inquired subscription item has a filtering condition, judging whether the part solid model meets the filtering condition of the subscription information, if so, issuing the unique identification and name information of the moved part solid model and the moved part solid model at the old position, and if not, not issuing.

Further, in one example, the subscription items of the subscription information include at least a unique identifier, a spatial range, and a filter condition. When the part entity model is added to the target entity model, the part entity model needs to be bound to the target entity model, namely, the spatial attribute value of the part entity model is set as the unique identifier of the target entity model. When a part mockup is added to a target mockup, all subscription terms uniquely identified as the spatial attribute value of the part mockup are queried. If the subscription item is inquired, obtaining a parent model of the part entity model, namely a target entity model; in order to compare the relationship between the shape information of the part solid model and the space range, the shape information of the part solid model needs to be converted into a coordinate system of the target solid model and then compared with the space range of the target solid model, and if the shape information of the part solid model does not meet the space range, the shape information is not issued; and if the shape information of the part solid model meets the spatial range, judging whether the added part solid model meets the filtering condition in the subscription item, if so, issuing the unique identification and name information for creating the part solid model, and if not, not issuing. When the part entity model is deleted and the attribute of the part entity model is modified, such as member information modification, the process of publishing the change information of the part entity model is the same as the publishing process when adding.

Further, the subscription items of the subscription information at least comprise unique identification, spatial range, type and filtering condition. When the part entity model is added to the target entity model, the part entity model needs to be bound to the target entity model, namely, the spatial attribute value of the part entity model is set as the unique identifier of the target entity model. When the part entity model is added, inquiring all subscription items with unique identification as the space attribute value of the part entity model; if the subscription item exists, obtaining a target entity model, wherein the coordinate system of the spatial range is the coordinate system of the target entity model; judging whether the entity model of the part conforms to the type of the subscription information corresponding to the subscription item, if not, not releasing the part entity model; if the relationship between the shape information of the part solid model and the space range is met, the shape information of the part solid model needs to be converted into a coordinate system of the target solid model and then compared with the space range, and if the relationship between the shape information of the part solid model and the space range is not met, the shape information of the part solid model is not issued; if the shape information of the part solid model meets the space range, judging whether the part solid model meets the filtering condition in the subscription item, if so, issuing the unique identification and name information for creating the part solid model, and if not, not issuing. When the part entity model is deleted and the attribute of the part entity model is modified, such as member information modification, the process of publishing the change information of the part entity model is the publishing process when the change information is added.

Referring to fig. 7, optionally, in another embodiment, the method further includes:

s15: aiming at a target entity model, acquiring all incidence relations existing in the target entity model, and inquiring all part entity models associated with the target entity model by using all the incidence relations;

s16: and aiming at a part entity model, acquiring all incidence relations existing in the part entity model, and inquiring a target entity model associated with the part entity model and other part entity models associated with the target entity model by using all incidence relations.

Specifically, in this embodiment, an incidence relation is established between the target entity model and the part entity model, and the incidence relation of a certain target entity model is queried, that is, the related part entity model can be queried.

In an example of this embodiment, after the association relationship is established, a tag is set for the parent model, a tag for associating the parent model is set for the child model, the association relationship is established by tag association, a certain target entity model is queried, the tag on which the association relationship is represented is obtained, and all part entity models that conform to the tag are queried by the tag, so as to achieve the effect of fast query.

If the part entity model is a part entity model, the label representing the association relation on the part entity model is inquired, and then the target entity model associated with the label and the part entity model associated with the target entity model can be inquired.

In this embodiment, the method for establishing the association relationship is not limited to the tag, and the association relationship may be established in a spatial location inclusion manner, which is not the content concerned in this embodiment and is not described herein again.

Through the setting of the application, the entity model is inquired through the association relation, the required entity model can be quickly inquired, and other models related to a certain entity model can also be inquired.

Optionally, in another embodiment, an index is established based on the association relationship or the association relationship of the target entity model and/or the part entity model and at least one other attribute value, and the target entity model and/or the part entity model corresponding to the attribute value is queried.

Other attributes of the target solid model and the part solid model are data elements in the data structure thereof except for the incidence relation, such as time attribute, shape information and the like.

In the embodiment, the index establishing mode is simple, intermediate data conversion is not needed, the user query is facilitated, various query requirements are met, the key-value query is not supported singly, and compared with the sql query, the user does not need to relate to how to write the sql statement, and the query can be directly carried out in a fixed mode.

And the index is established by the incidence relation, and all the associated entity models can be directly inquired according to the incidence relation.

And establishing an index by the incidence relation and other attributes, and querying the associated entity model with the same attribute.

Furthermore, a filtering condition is set, and after the query result is obtained, the query result is filtered according to the filtering condition.

Specifically, by setting the filtering conditions, the diversified demands of the user can be met, and accurate query is realized.

The filter criteria support the filtering of all attributes and member information fields. For example, a target solid model "factory" is created first, and then a part solid model "production line" is created. When the production lines are established, the output of the twin production line is the output in the member information, and each production line continuously updates the output of the member information in real time in the production process. To find all production lines in a plant with a current production rate greater than 1000, the filter condition can be written as "production >1000". After all the production lines in the factory are found according to the index, the real-time values of all the members of "yield" in the found production lines are compared to determine whether the real-time values satisfy the condition of more than 1000. And after comparison, returning all production lines meeting the condition, and if not, returning that the number of the production lines is 0.

Further, in one example, an index is built from the spatial attribute values to provide a type of part mockup within the query target mockup.

And the spatial attribute value of the part entity model is the unique identifier of the bound target entity model, and all the part entity models with the same spatial attribute value are retrieved by the spatial attribute value. And filtering all the inquired part solid models according to the filtering conditions. And finally organizing and sorting data according to the attribute field required by the user, and returning the sorted data to the final result of the user.

Further, in one example, an index is built from the spatial attribute values and types to provide a query for a type of part mockup within the target mockup.

The spatial attribute value of the part entity model is the unique identifier of the bound target entity model, a joint index is established according to the spatial attribute and the type, and all the part entity models with the same spatial attribute value and the same type are retrieved according to the spatial attribute and the type. And filtering all the inquired part solid models according to the filtering conditions. And finally organizing and sorting data according to the attribute field required by the user, and returning the data to the final result of the user.

Further, in one example, an index is built from the location attribute values to provide the part mockup at the location of the query target mockup.

The position attribute value of the part entity model is the unique identifier of the part entity model at the position, namely the position attribute value can also inquire related entity models with incidence relation, an index is built according to the position attribute value, and all part entity models on the same part entity model are retrieved according to the position attribute. And filtering all the inquired part solid models according to the filtering conditions. And finally organizing and sorting data according to the attribute field required by the user, and returning the sorted data to the final result of the user.

Further, in one example, an index is built from the location attribute values and the types to provide a type of part mockup at the location of the query target mockup.

And the position attribute value of the part solid model is the unique identifier of the part solid model at the position of the part solid model, a joint index is established according to the position attribute and the type, and all the part solid models which are on the same part solid model and have the same type are retrieved according to the position attribute and the type. And filtering all the inquired part solid models according to the filtering conditions. And finally organizing and sorting data according to the attribute field required by the user, and returning the sorted data to the final result of the user.

Further, in one example, an index is built from the unique identifier + spatial extent, providing a query for the part mockup within a spatial extent within the target mockup. The spatial range is a geometric range composed of specific coordinate values on the coordinate system of the target solid model.

The unique identification is a space attribute value of the part entity model related to the target entity model, index query is established through the unique identification, namely, an index is established through the association relation, and a coordinate system of a query range is a coordinate system of the target entity model; the query range and the queried part solid model need to be in the same coordinate system so as to use the Z space curve indexing technology, so that the shape information of the part solid model in the coordinate system of the target solid model is converted into the coordinate system of the target solid model, and then the shape information and/or the envelope information of the part solid model is converted into a Z space curve indexing range value and stored into the data structure of the part solid model. And establishing a combined index of 'unique identification + Z curve index range value' of the target entity model. And converting the query range into a query range value under the Z-space curve. And then retrieving all the part solid models meeting the conditions according to the unique identification and the query range. And filtering all the inquired part solid models according to the filtering conditions. And finally organizing and sorting data according to the attribute field required by the user, and returning the sorted data to the final result of the user.

Further, in one example, an index is created with the unique identifier, spatial range, and type, and the target mockup is queried for a type of part mockup within a spatial range that is a spatial range consisting of specific coordinate values in the coordinate system of the target mockup.

The coordinate system of the query range is the coordinate system of the target solid model; the inquired space range and the inquired part solid model need to be under the same coordinate system, and a Z space curve indexing technology is convenient to use, so that the shape information of the part solid model is converted into the coordinate system of the target solid model. And converting the shape information and/or the envelope information of the part solid model into a Z-space curve index range value, and storing the Z-space curve index range value into a data structure of the part solid model. And establishing a combined index of 'unique identification + type + Z curve index range value' of the target entity model. And converting the query range into a query range value under the Z-space curve. And then retrieving all part solid models meeting the conditions according to the unique identification, the type and the query range. And filtering all the inquired part solid models according to the filtering conditions. And finally organizing and sorting data according to the attribute field required by the user, and returning the sorted data to the final result of the user.

Referring to fig. 8, in an embodiment of the present application, a method for subscribing to a current state of an entity is provided, including the following steps:

s20: respectively establishing a target entity model and at least one part entity model aiming at a target physical entity and at least one part physical entity forming the target physical entity, wherein the target entity model and the part entity model at least comprise a space range, and the space range is used for describing a range formed by coordinate values of the target entity model or the part entity model in a coordinate system;

s21: and when the spatial range of the part solid model and the spatial range of the target solid model are overlapped, the subscriber receives the change information of the part solid model.

Specifically, in this embodiment, a coordinate system is established in advance, and the way of establishing the coordinate system may be: 1. establishing a first coordinate system of a target entity model, wherein the spatial range value of the target entity model is a coordinate value in the first coordinate system, and the spatial range value of the part entity model is referred to the first coordinate system; 2. establishing a first coordinate system of the target physical model, and establishing a second coordinate system of the part physical model, wherein the first coordinate system and the second coordinate system have a relative position relationship, and the relative position relationship in the embodiment is that the coordinates in the first coordinate system can be converted into the second coordinate system.

When the part solid model is moved into or newly built in the target solid model, the spatial range of the part solid model is partially overlapped with the target solid model or the spatial range of the target solid model comprises the spatial range of the part solid model, the relation between the spatial range of the part solid model and the spatial range of the target solid model is judged, and the part solid model and the target solid model are required to be converted into the same coordinate system.

Through the setting of the embodiment, the relation between the part entity model and the target entity model is used for enabling the part entity model to be associated with the target entity model, and the change information of the part entity model with the association relation of the target entity model can be quickly subscribed through the association.

Referring to fig. 9, optionally, in another embodiment, the method further includes:

s22: when the space range of the part entity model and the space range of the target entity model are overlapped for the first time, the subscriber receives the moving-in information of the part entity model in the target entity model.

Optionally, in another embodiment, S21 further includes:

s211: when the part solid model changes, inquiring the space ranges of the target solid models corresponding to all the space range subscription items, and judging whether the space ranges of the part solid models are overlapped with the space ranges of the target solid models corresponding to the space range subscription items;

s212: and if the part entity models are overlapped, releasing the change information of the part entity models.

In this embodiment, the change of the part mockup includes any one of the following cases: and modifying the attribute of the part solid model in the space range of the target solid model, and moving the part solid model out of the space range of the target solid model.

Optionally, in another embodiment, the method further includes:

s23: aiming at a target entity model, inquiring all part entity models in the space range of the target entity model according to the space range of the target entity model;

s24: and aiming at a part solid model, inquiring a target solid model with a space range including the space range of the part solid model and/or other part solid models included in the space range of the target solid model according to the space range of the part solid model.

In one embodiment of the present application, a twin system of the current state of the physical object is provided, which corresponds one-to-one to the twin method of the current state of the physical object in the above embodiments. The twinning system of the current state of the entity object comprises:

the model establishing module is used for respectively establishing a target entity model and at least one part entity model aiming at a target physical entity which currently exists and at least one part physical entity which forms the target physical entity, and the target entity model and the part entity model both comprise time attributes;

Optionally, in another embodiment, the target solid model and the part solid model each include a spatial attribute, and the spatial attribute describes a spatial size of the target solid model or the part solid model.

Optionally, the spatial attribute is described by a spatial range, and the spatial range describes a geometric range formed by coordinate values of the target solid model or the part solid model in a coordinate system;

Optionally, in another embodiment, the target solid model and the part solid model further include a unique identifier, and the unique identifier is used for uniquely mapping the corresponding target solid model or the part solid model.

Optionally, in another embodiment, a first coordinate system is established in the target physical model of the target physical entity, an origin of the first coordinate system is kept fixed relative to the spatial position of the target physical model, and the spatial attribute values of the part physical model of the part physical entity adopt the first coordinate system as a reference coordinate system, wherein,

when the target entity model moves, the part entity model having a parent-child relationship with the target entity model moves along with the target entity model.

Optionally, in another embodiment, a first coordinate system is established in the target physical model of the target physical entity, the origin of the first coordinate system is kept fixed relative to the spatial position of the target physical model, a second coordinate system corresponding to the physical model of the part is established according to the first coordinate system, and the first coordinate system and the second coordinate system have a relative position relationship therebetween, wherein,

Optionally, in another embodiment, the part entity model further includes a position attribute, and the part entity model further includes a position attribute, where the position attribute describes a spatial range of the part entity model excluding any one of other part entity models outside the spatial range of the part entity model within the spatial range of the target entity model having a parent-child relationship.

Optionally, in another embodiment, when the part solid model is moved, the position attribute value of the part solid model is modified to be the unique identifier of other part solid models of the space position to which the part solid model needs to be moved.

Optionally, in another embodiment, the target physical model and the part physical model both include shape information and posture information, where the shape information is coordinate data of the target physical model in the first coordinate system or the part physical model in the second coordinate system, which describes a shape; the pose information describes data of the target solid model or the part solid model in a first coordinate system or a second coordinate system describing rotation of the target solid model or the part solid model.

Optionally, in another embodiment, after the target entity model is deleted, the part entity model having a parent-child relationship with the target entity model is disassociated from the target entity model; or the like, or a combination thereof,

Optionally, in another embodiment, the target entity model and the part entity model each further include member information, and the member information describes difference information of the target entity model or the part entity model.

The above-mentioned twinning system modules of the present state of the entity may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In an embodiment of the present application, a system for subscribing to a current state of an entity object is provided, where the system for querying the current state of the entity object corresponds to the method for subscribing to the current state of the entity object in the foregoing embodiment one to one. The subscription system of the current state of the entity object comprises:

Further, in another embodiment, the first publishing module is further configured to receive creation information of the part mockup associated with the target mockup by the subscriber after the creation of the at least one part mockup associated with the target mockup is completed.

Further, in another embodiment, the first publishing module is further configured to query whether there is a subscription item of a target entity model having an association relationship with the part entity model when the state of the part entity model changes; and if so, releasing the change information of the part entity model.

Further, in another embodiment, the change of the state of the solid model of the part includes any one of the following situations: and modifying the attribute of the part solid model, and deleting the part solid model from the associated target solid model.

Further, in another embodiment, the system further includes a first query module, configured to, for a target entity model, obtain all association relationships existing in the target entity model, and query all part entity models associated with the target entity model by using all association relationships;

and the second query module is used for acquiring all incidence relations existing in the part entity model aiming at one part entity model, and querying a target entity model associated with the part entity model and other part entity models associated with the target entity model by using all incidence relations.

The above modules of the subscription system of the current state of the entity may be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In an embodiment of the present application, a system for subscribing to a current state of an entity object is provided, where the system for subscribing to a current state of an entity object corresponds to the method for subscribing to a current state of an entity object in the foregoing embodiment one to one. The subscription system of the current state of the entity object comprises:

Further, in another embodiment, the second publishing module is further configured to receive the immigration information of the part solid model within the target solid model by the subscriber when the spatial range of the part solid model and the spatial range of the target solid model are overlapped for the first time.

Further, in another embodiment, the second publishing module is further configured to, when the part entity model changes, query spatial ranges of the target entity models corresponding to all spatial range subscription items, and determine whether the spatial ranges of the part entity models overlap with spatial ranges of the target entity models corresponding to the spatial range subscription items; and if the part entity models are overlapped, releasing the change information of the part entity models.

Further, in another embodiment, the change of the part physical model includes any one of the following situations: and modifying the attribute of the part solid model in the space range of the target solid model, and moving the part solid model out of the space range of the target solid model.

Further, in another embodiment, the system further comprises:

the fourth query module is used for querying all part solid models in the space range of a target solid model according to the space range of the target solid model;

and the fifth query module is used for querying a target entity model of which the spatial range contains the spatial range of the part entity model and/or other part entity models contained in the spatial range of the target entity model according to the spatial range of the part entity model.

The above modules of the subscription system of the current state of the entity can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In an embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program, which when executed by a processor implements the twinning method steps of the current state of the physical object described in the above embodiments. The computer-readable storage medium includes a ROM (Read-Only Memory), a RAM (Random-Access Memory), a CD-ROM (Compact Disc Read-Only Memory), a magnetic disk, a floppy disk, and the like.

In an embodiment of the present application, a computer-readable storage medium is provided, where a computer program is stored, and when executed by a processor, the computer program implements the steps of the subscription method for the current state of an entity described in the above embodiment. The computer-readable storage medium includes a ROM (Read-Only Memory), a RAM (Random-Access Memory), a CD-ROM (Compact Disc Read-Only Memory), a magnetic disk, a floppy disk, and the like.

It should be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is only used for illustration, and in practical applications, the above functions may be distributed as different functional units and modules according to needs, that is, the internal structure of the system described in the present application may be divided into different functional units or modules to implement all or part of the functions described above.

Claims

1. A twin method of the current state of a physical object,

setting time attribute values in the target entity model and the at least one part entity model as the current time;

2. The twin method for the current status of physical objects according to claim 1, wherein the relationship is a parent-child relationship, the target physical model with parent-child relationship is a parent model, and the part physical model is a child model.

3. The method of twinning a current state of a physical object of claim 2, wherein the target physical model in a parent-child relationship is the only parent model of the part physical model.

4. The twin method of the present state of physical objects according to claim 2, wherein the target solid model and the part solid model each include spatial attributes describing a spatial size of the target solid model or the part solid model.

5. The twin method of the present state of the physical object as set forth in claim 4, wherein the spatial attribute is described by a spatial range describing a geometric range formed by coordinate values of the target physical model or the part physical model in a coordinate system;

6. The twin method of the present state of physical objects according to claim 4, wherein the target solid model and the part solid model further comprise unique identifiers for uniquely mapping the corresponding target solid model or part solid model.

7. The twinning method of claim 5, further comprising:

8. The twinning method of claim 5, further comprising:

establishing a first coordinate system in a target physical model of the target physical entity, wherein the origin of the first coordinate system is kept fixed relative to the spatial position of the target physical model, establishing a second coordinate system corresponding to the physical model of the part according to the first coordinate system, and the first coordinate system and the second coordinate system have a relative position relationship, wherein,

9. The method of twinning a current state of a physical object of claim 4, wherein the part mockup further includes a location attribute that describes a spatial extent of the part mockup within a spatial extent of a target mockup having a parent-child relationship excluding a spatial extent of any one of the other part mockups.

10. The twinning method of the present status of physical objects as claimed in claim 9, wherein when moving the part physical model, the position attribute value of the part physical model is modified to be the unique identification of the other part physical model corresponding to the spatial range to which the movement is required.

11. The method of twinning a current state of a physical object of claim 5, further comprising:

the target solid model and the part solid model both comprise shape information and posture information, and the shape information is coordinate data of the target solid model in a first coordinate system or the part solid model in a second coordinate system for describing the shape; the pose information describes data of the target solid model or the part solid model in a first coordinate system or a second coordinate system describing rotation of the target solid model or the part solid model.

12. The method of twinning a current state of a physical object of claim 2, further comprising:

after the target entity model is deleted, the part entity model having a parent-child relationship with the target entity model is disassociated from the target entity model; or the like, or a combination thereof,

13. The twin method of the present status of physical objects according to claim 1, wherein the target physical model and the part physical model each further include member information describing difference information of the target physical model or the part physical model.

14. A method for subscribing the current state of an entity object is characterized by comprising the following steps:

when the state of the part solid model changes, the subscriber receives the change information of the part solid model related to the target solid model.

15. The subscription method according to claim 14, further comprising:

16. The subscription method according to claim 14 or 15, wherein when the state of the part entity model changes, the subscriber receives change information of the part entity model associated with the target entity model, and the method comprises:

and if so, releasing the change information of the part entity model.

17. The subscription method of claim 14, wherein the change of state of the part mockup comprises any one of: and modifying the attribute of the part solid model, and deleting the part solid model from the associated target solid model.

18. The subscription method according to claim 14, wherein the method further comprises:

19. A method for subscribing the current state of an entity object is characterized by comprising the following steps:

respectively establishing a target entity model and at least one part entity model aiming at a target physical entity and at least one part physical entity forming the target physical entity, wherein the target entity model and the part entity model at least comprise a spatial range, and the spatial range is used for describing a range formed by coordinate values of the target entity model or the part entity model in a coordinate system;

and when the space range of the part entity model and the space range of the target entity model are overlapped, the subscriber receives the change information of the part entity model.

20. The subscription method of claim 19, wherein when the spatial extent of the part mockup and the spatial extent of the target mockup overlap, the receiving, by the subscriber, change information of the part mockup within the target mockup comprises:

21. The subscription method of claim 19 or 20, wherein when the spatial range of the part solid model and the spatial range of the target solid model overlap, the receiving, by the subscriber, the change information of the part solid model within the target solid model comprises:

when the part solid model changes, inquiring the space ranges of the target solid models corresponding to all the space range subscription items, and judging whether the space ranges of the part solid models are overlapped with the space ranges of the target solid models corresponding to the space range subscription items;

22. The subscription method of claim 21, wherein the part mockup changing comprises any one of: and modifying the attribute of the part solid model in the space range of the target solid model, and moving the part solid model out of the space range of the target solid model.

23. The subscription method as claimed in claim 19, further comprising:

and aiming at a part solid model, inquiring a target solid model with a space range including the space range of the part solid model and/or other part solid models included in the space range of the target solid model according to the space range of the part solid model.

24. A twin system of a current state of a physical object, the system comprising:

25. A subscription system for the current status of an entity, the system comprising:

26. A system for subscribing to a current status of an entity, the system comprising:

27. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the method of any one of claims 1 to 23.